16. The experts from the European Commission introduced a new 04 series of amendments to UN Regulation No. 117 (ECE/TRANS/WP.29/GRBP/2022/12). The expert from ETRTO proposed further modifications (GRBP-76-23 and GRBP-76-32). GRBP adopted ECE/TRANS/WP.29/GRBP/2022/12, as amended by GRBP-76-23 and GRBP-76-32, subject to the removal of the square brackets, and requested the secretariat to submit it for consideration and vote at the March 2023 sessions of WP.29 and AC.1 as the draft new 04 series of amendments to UN Regulation No. 117.

17. GRBP noted that the experts from Japan decided to withdraw GRBP-76-17 and GRBP-76-18 at this stage.

18. The expert from ISO proposed that the latest ISO 10844:2021 standard test surface be brought into UN Regulation No. 117 (ECE/TRANS/WP.29/GRBP/2022/14). The expert from ETRTO tabled additional modifications (GRBP-76-35). GRBP adopted ECE/TRANS/WP.29/GRBP/2022/14, as amended by GRBP-76-35, and requested the secretariat to submit it for consideration and vote at the March 2023 sessions of WP.29 and AC.1 as draft Supplement 15 to the 02 series of amendments to UN Regulation No. 117.

19. GRBP noted the activities of the Informal Working Group on Wet Grip Performance of Tyres in Worn State (IWG WGWT) (GRBP-76-06).

20. The expert of IWG WGWT presented their proposals for the moulded standard reference test tyre and wet grip of C2, C3, and some clusters of C1 tyres in a worn state (ECE/TRANS/WP.29/GRBP/2022/22, ECE/TRANS/WP.29/GRBP/2022/23, GRBP-76-02 and GRBP-76-05). The expert from ETRTO introduced additional amendments (GRBP-76-24-Rev.1, GRBP-76-33-Rev.1 and GRBP-76-34).

21. GRBP adopted ECE/TRANS/WP.29/GRBP/2022/22, as amended by GRBP-76-05 and GRBP-76-34, subject to the removal of the square brackets, and requested the secretariat to submit it for consideration and vote at the March 2023 sessions of WP.29 and AC.1 as draft Supplement 1 to the 03 series of amendments to UN Regulation No. 117.

22. GRBP adopted ECE/TRANS/WP.29/GRBP/2022/23, as amended by GRBP-76-02, GRBP-76-33-Rev.1, and GRBP-76-24-Rev.1, and requested the secretariat to submit it for consideration and vote at the March 2023 sessions of WP.29 and AC.1 as part of the draft new 04 series of amendments to UN Regulation No. 117.

23. The expert from ETRTO introduced an amendment proposal on a “traction tyre” (ECE/TRANS/WP.29/GRBP/2022/17). GRBP adopted the proposal, as amended by GRBP-76-31, and requested the secretariat to submit it for consideration and vote at the March 2023 sessions of WP.29 and AC.1 as part of the draft new 04 series of amendments to UN Regulation No. 117.

24. The experts from ETRTO tabled proposals which aimed to introduce provisions for type approval of special use tyres that fulfil the requirements for snow performance (ECE/TRANS/WP.29/GRBP/2022/18 and ECE/TRANS/WP.29/GRBP/2022/19).

25. GRBP adopted ECE/TRANS/WP.29/GRBP/2022/19, as amended by GRBP-76-21, and requested the secretariat to submit it for consideration and vote at the March 2023 sessions of WP.29 and AC.1 as part of draft Supplement 15 to the 02 series of amendments to UN Regulation No. 117.

26. GRBP adopted ECE/TRANS/WP.29/GRBP/2022/18 and requested the secretariat to submit it for consideration and vote at the March 2023 sessions of WP.29 and AC.1 as part of draft Supplement 1 to the 03 series of amendments to UN Regulation No. 117.

27. The expert from ETRTO proposed editorial corrections (ECE/TRANS/WP.29/GRBP/2022/20). GRBP adopted this proposal, as amended by GRBP-76-22, and requested the secretariat to submit it for consideration and vote at the March 2023 sessions of WP.29 and AC.1 as part of draft Supplement 15 to the 02 series of amendments to UN Regulation No. 117.

28. GRBP noted that all above amendments to the 03 series of amendments to UN Regulation No. 117, i.e. draft Supplement 1 to the 03 series, should also be included into the draft new 04 series of amendments to UN Regulation No. 117.

29. To facilitate consolidation of amendment proposals according to their series of amendments of UN Regulation No. 117, the expert from ETRTO prepared a summary of all relevant official and informal documents (GRBP-76-38). In this context, GRBP expressed a general concern about the late arrival of a large number of informal documents, impeding their proper consideration by experts from contracting parties.

30. GRBP noted that the consolidated amendment proposals to the 02, 03 and 04 series of amendments of UN Regulation No. 117 would be prepared in December 2022 and submitted to the March 2023 sessions of WP.29 and AC.1. In the interim, GRBP agreed to check these consolidated documents for errors at its next session in February 2023.